Lamp



Oct. 28 1924 L. E. wEsToVER LAMP Filed June 21, 19,22

ATTORNEY. L

Patented Oct. 28, 1924.

entree stares LESLIE E. WESTOVER, OF DENVER, COLORADO.

LAMP.

Application fined June 21,

To all whom it may concem:

Be it known that I, Lasnn: E. WEsTovEn, a citizen of the United States,residing at Denver, in the county of Denver and State of Colorado, haveinvented certain new and useful Improvements in Lamps, of which thefollowing is a specification.

My invention relates to improvements in lamps of the type used forilluminating distant places or objects and its principal object is torovide a lam in which the glare of the lig t produced t erein iseliminated without diminution of the intensity of the emitted ra s. Withthis object in view, my invention is particularly adapted for use as ahead light for automobiles, locomotives and other motor driven vehicles,or as a dirigible spot light of the kind used on vehicles and intheatres.

An embodiment of the invention has been illustrated in the accompanyingdrawings in the various views of which corresponding parts are similarlydesignated, and in which Figure 1 represents a partially sectional sideelevation of a head light constructed in accordance with the presentinvention;

Figure 2, a vertica section taken on the line 22, Figure 1;

Figure 3, a. horizontal section along the line 3r3, Figure 1; and

Figure 4, a front elevation of the head ht drawn to a reduced scale.

eferring more s ecifically to the drawings, my improved amp consists ofa housing 5 having in its upper portion a lasscovered openin 6 throughwhich the ight rays are emitte Facing the opening in a slantingposition, is a reflector 7 upon which impinge the light rays originatedin a source which is concealed in the lower portion of the housing.

The source of light consists in the construction shown in the drawings,of an incandescent bulb 8 which receives its electric current throughconductors 9 terminating in a socket 1O 1n the bottom of the housing,

' and said bottom is preferabl concaved and interiorly polishedtofunction as a reflector 21 which throws the l' ht produced by thebulb, in the directiono the slanting reflector which reflects the li htrays toward the glass covered opening 0 the lamp. The reflective bottomportion of the housing in which the lamp 1s mounted, is preferably 1922.Serial No. 569,908.

opening of the housing substantially evoid of excessively upwardly orlaterally directed rays, which are the principal cause of the glarewhich, especially in head lights of automobiles, are an annoyance andsource of danger to pedestrians and to drivers of approaching vehicles.

The housing may be provided with a second, smaller opening 15 below theother, which if covered by a prismatic, preferably colored glass 16,provides a pilot light which shows the direction in which the vehicle onwhich the lamp is mounted, travels. This second opening is however,merely an ad- ?)unct feature of the invention, and has no caring on itsfunction of producing a light beam of maximum intensity without glare.

The slanting reflector as shown in the drawings, is concaved to directthe reflected rays toward the central portion of the lass covered 0ening and, by intersection o the rays, pro uces a spreading light whichilluminates the sides of the road as well as the art of the same whichis directly for war of the vehicle. The'reflector may however be made'convex when a wider spread of light rays of lesser intensity is desired,or flat when it is preferred to concentrate the light rays to an area oflimited diameter.

It is preferred to mount the reflector so that its angle may be variedin order to adjust the direction in which the light beam is emittedthrough the opening of the housing, according to the position in whichthe lamp is placed on the vehicle. With this in View, one end of thereflector is pivotally supported in bearings 17 on the housin and itsopposite end is held in place by a be lows connection 18 which, by meansof a tube, 19, communicates with a conveniently located source of fluidpressure.

The above described method for adjust.- ing the reflector has beenheretofore used in other different apparatus and no claim is made as tothe novelty of its specificconstruction.

The glass late 21) which covers the main opening" 6 o the housing may hemade of any desired sectional form, a plane-convex or convene-concaveshape heing referred.

The plates 13 which direct the ght rays from the source of ii ht to theslanting redoctor in parallelly lined groups, are made of thin metal thesides of which are coated in a dull hlack or other light-absorbingnon-reflective color.

Having thus described the construction of my improved lamp, it will bereadily seen that owing to the concealed position of the lamp and theuniform angles at which the light re s impinge upon the slantingretiector, t e glare Whic in other lamps is a constant source ofannoyance and den or to pedestrians and drivers of other vehic es, is

completely eliminated While by reason of the specular reflection of thelight rays originated in the electric hulb, the elimination oi? theglare does not detract from their original illuminative power.

desire it understood that within the s irit and scope of my invention asherein eecrihed and as defined in the hereunto appended claim, It mayavail myself of variations in the form, construction and arr,ere,eee

rangernent of its parts from that shown in the drawin.

What I c aim and desire to secure by Lettors-Patent is A headlightcomprising an elongate housing having a lass-covered openin for theemlssion o lig t adjacent an end t ereof, a source of light in thehousing at its opposite end, a reflector disposed to reflect the lightof said @urce toward the end of the housing rovided with the openin anda second re ector angularly disposed relative to thefirst reflector andthe opening to bend the reflected liwht re s toward the latter, and aseries oi para el partitions dividing the passage in the housin betweenthe reflectors into channels restrict the light rays so that the maypass through the opening in. substantially parallel relation to eachother, the housing having opposite and in spaced relation to said seriesof artitions, a second lass-covered openin or the emission of light at areduced intensity.

in testimony whereof I have athxed my signature.

LESLIE E. WESTQVER.

apted to

